﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml.Serialization;

namespace KQ.DCMMP.Common
{
    public static class SerializeHelper
    {
        #region 反序列化

        /// <summary>
        /// 反序列化
        /// </summary>
        /// <param name="type">类型</param>
        /// <param name="xml">XML字符串</param>
        /// <returns></returns>
        public static object DeserializeFromXml(Type type, string xml)
        {
            try
            {
                using (StringReader sr = new StringReader(xml))
                {
                    XmlSerializer xmldes = new XmlSerializer(type);
                    return xmldes.Deserialize(sr);
                }
            }
            catch (Exception e)
            {

                return null;
            }
        }

        /// <summary>
        /// 反序列化
        /// </summary>
        /// <param name="type"></param>
        /// <param name="xml"></param>
        /// <returns></returns>
        public static object DeserializeFromStream(Type type, Stream stream)
        {
            XmlSerializer xmldes = new XmlSerializer(type);
            return xmldes.Deserialize(stream);
        }

        #endregion

        #region 序列化

        /// <summary>
        /// 序列化
        /// </summary>
        /// <param name="type">类型</param>
        /// <param name="obj">对象</param>
        /// <returns></returns>
        public static string SerializeToString(Type type, object obj)
        {
            MemoryStream Stream = new MemoryStream();
            XmlSerializer xml = new XmlSerializer(type);
            try
            {
                //序列化对象
                xml.Serialize(Stream, obj);
            }
            catch (InvalidOperationException)
            {
                throw;
            }
            Stream.Position = 0;
            StreamReader sr = new StreamReader(Stream);
            string str = sr.ReadToEnd();

            sr.Dispose();
            Stream.Dispose();

            return str;
        }

        #endregion

        /// <summary>
        /// XML序列化某一类型到指定的文件
        /// </summary>
        /// <param name="filePath"></param>
        /// <param name="obj"></param>
        /// <param name="type"></param>
        public static void SerializeToXml<T>(string filePath, T obj)
        {
            try
            {
                using (System.IO.StreamWriter writer = new System.IO.StreamWriter(filePath, false))
                {
                    System.Xml.Serialization.XmlSerializer xs =
                        new System.Xml.Serialization.XmlSerializer(typeof(T));
                    xs.Serialize(writer, obj);
                }
            }
            catch (Exception ex)
            {
            }
        }

        /// <summary>
        /// 从某一XML文件反序列化到某一类型
        /// </summary>
        /// <param name="filePath">待反序列化的XML文件名称</param>
        /// <param name="type">反序列化出的</param>
        /// <returns></returns>
        public static T DeserializeFromXml<T>(string filePath)
        {
            try
            {
                if (!System.IO.File.Exists(filePath))
                    throw new ArgumentNullException(filePath + " not Exists");

                using (System.IO.StreamReader reader = new System.IO.StreamReader(filePath))
                {
                    System.Xml.Serialization.XmlSerializer xs =
                        new System.Xml.Serialization.XmlSerializer(typeof(T));
                    T ret = (T)xs.Deserialize(reader);
                    return ret;
                }
            }
            catch (Exception ex)
            {
                return default(T);
            }
        }
    }
}